To "goodbye a chome" to ask: clay brick or clay brick
But in detail that there are some differences
Specifically: clay, with little sand, sticky soil, water is not easy to pass from Clay is an important mineral raw material It consists of a variety of hydrated silicates and an amount of alumina, alkali metal oxides and alkaline earth metal oxides and contains impurities such as quartz, feldspar, mica and sulphates, sulfides, carbonates and the like Clay minerals are small particles, often in the colloidal size range, was crystal or amorphous, mostly flake, a few tubular, rod-shaped Clay minerals with water after the plasticity of plastic, under a small pressure can be deformed and can remain intact for a long time, and the specific surface area, the particles with negative electricity, so there is a good physical adsorption and surface chemical activity, with other cations The ability to exchange
Now "clay" and "clay" have become synonyms and have been merged
